90912880

素因数分解:

$2^4\times 5^1\times {\mathrm{1136411}}^1$

素因数の和:1136424

約数の個数: 20

約数和(自身を含む): 211372632

約数和(自身を除く): 120459752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1136411, 2272822, 4545644, 5682055, 9091288, 11364110, 18182576, 22728220, 45456440, 90912880]

約数ペア:

[(1, 90912880), (2, 45456440), (4, 22728220), (5, 18182576), (8, 11364110), (10, 9091288), (16, 5682055), (20, 4545644), (40, 2272822), (80, 1136411)]